Physics

A centrifuge has a diameter of 18cm. It is able to spin at 10,000 rpm. A. What is the centripetal acceleration of the centrifuge?B. If we place a 10 9 gram sample into the centrifuge, what is the force on the sample?C. How many times greater than the force of gravity is this force?
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Brainliest if correct!_A particle is projected vertically upwards from a fixed point O. The speed of projection is u m/s. The particle returns to O 4 seconds later. Find:a) the value of ub) the greatest height reached by the particlec) the total time of which the particle is at a height greater than half its greatest heightThank you so much!
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ightning is an electrostatic discharge between two electrically charged regions that allows electrons in a negatively charged region to flow back to the positive region. how did these regions in thunderstorms get oppositely charged to begin with?
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Is it possible to play the lowest string with your finger on any of the frets shown and hear the same frequency as the highest string?.
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State 2 advantages of alkaline accumulators over lead-acid accumulators
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achievement and challenges of science and technology explain?
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Two blocks of masses 1. 0 kg and 2. 0 kg, respectively, are pushed by a constant applied force f across a horizontal frictionless table with constant acceleration such that the blocks remain in contact with each other, as shown above. The 1. 0 kg block pushes the 2. 0 kg block with a force of 2. 0 n. The acceleration of the two blocks is.
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A toaster is listed as 1560 w. when it is plugged into a 120 v circuit and starts to make toast, how many amperes will it draw
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Would two observers standing on opposite sides of the truck hear the same pitch at the same time? Explain.
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Please it due today need help!!!Gender shifts are actually a common phenomenon in public roles (employment,entertainment, or otherwise). Identify a role and explain if there is a status changein the role - as in how these women or non binary folks are treated by the othersin the situation (still treated as women/non-binary or as if they are men-explain).
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In a recent movie, a car and a truck had a head on collision. The car was moving to the right with a constant speed of 21 m/s. A parked truck that was 310 m in front of the car began moving to the left and speeding up at a rate of 1.2 m/s/s. Position 0 m is the car's initial position.What is the position of the car after 4 seconds?What is the position of the truck after 4 seconds?What is the velocity of the truck upon impact with the car?How much time passes before the collision happens? Where do the car and truck collide?
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A 0. 068-kg ball strikes a wall with a velocity of 22. 1 m/s. The wall stops the ball in 0. 63 s. What is the magnitude of theforce applied by the wall on the ball?a. 5. 3nb. 4. 2nc. 12nd. 2. 4n
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can someone please explain Question 1 a and e go to me :) ?i have the answers. i just don't understand why the answers are what they are.
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A small block sits at one end of a flat board that is 4.00 m long. The coefficients of friction between the block and the board are s = 0.550 and k = 0.400. The end of the board where the block sits is slowly raised until the angle the board makes with the horizontal is 0, and then the block starts to slide down the board.
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If a 325 W heater has a current of 6.0 A, what is the resistance of the heating element?O 10 OhmsO 50 Ohms88 Ohms9 Ohms
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(b) The aluminium wire will break if the tension in the wire exceeds 350N. The wire is attached to the flagpole at B, 0. 8 m from the wall. The wire is at an angle of 20 to the flagpole. Assess whether the wire will break. You should use the principle of moments, takingmoments about 0. length of flagpole = 1. 2mmass of flagpole and flag = 15 kg
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Suppose you can jump 1 m on earth. how high would you be able to jump onmars? the mass of mars is 6.4181023kg and its radius is 3.38106m.
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A spaceship has four thrusters for movement. Each thruster can fire exhaust gases away from the ship, causing it to move. Firing which pairs of thrusters together would cause the ship to remain stationary?Thrusters 1 and 2, Thrusters 1 and 2 , ,Thrusters 1 and 3, Thrusters 1 and 3 , ,Thrusters 3 and 4, Thrusters 3 and 4 , ,Thrusters 2 and 3, Thrusters 2 and 3 , ,Thrusters 1 and 4, Thrusters 1 and 4 , ,Thrusters 2 and 4
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_______ assisted Anton Raphael Mengs with the iconography of his ceiling fresco, Parnasus, in the Villa Albani.A) Johann WinckelmannB) Cardinal AlbaniC) Jacques Louis DavidD) Joshua Reynolds
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what is gravitatinal force ?
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The resistance in a series rcl circuit is doubled. (a) does the resonant frequency increase, decrease, or remain the same
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A cannonball is fired horizontally from the top of a cliff. The cannon is at height H = 70.0 m above ground level, and the ball is fired with initial horizontal speed v0 . Assume acceleration due to gravity to be g = 9.80 m/s2 .A)Assume that the cannon is fired at time t=0 and that the cannonball hits the ground at time tg . What is the y position of the cannonball at the time tg/2 ? Answer numerically in units of meters.
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two riders on bicycles, 100 miles apart. o each of these series. o begin traveling toward each other at the same time, one traveling at 10 miles a) acbdfe gal per hour and the other at is miles per hour. a fly named paul revere begins b) b~dwf fly~ng between the bicycles, starting from the front wheel of the slower c) h~f~dc~ beycle. if the fly travels at 20 miles per hour flying back and forth between 2 adam dropped a rubber ball from a bicycles, being able to reverse o window 40 feet above the sidewalk. directions without losing any time. how the ball always bounces half of the far will paul revere travel before the height that it drops. how far will the ball bicycles meet?
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When light is restricted to oscillating in a single plane, that is known as diffraction dispersion interference polarization
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